Elevator door closing device



Oct. 13, 1931. A. A. WAYNE ELEVATOR DOOR CLOSING DEVICE Filed Jan. 19,1931 FILES-E1.

INVENTOR.

. H-HJ YHYNE,

ATTORNEY.

patented Oct. 13, 193i UNITED STATES ALEXANDER A. WAYNE, OF SANFRANOISCOQGAIJIFORNTA ELEVATOR noon cLosmG nnvron Application filedJanuary 19, 1931. Serial No. 509,810.

This invention relates to a device for closing elevator doors, and hasparticular reference to a device wherein the customary 1nner door of anautomatic elevator will be closed after the occupant passes from theelevator cage.

A further object is to produce a device of this character which issimple in construction and therfore one which may be readily applied toany elevator door.

A still further object is to produce a device of this character whichwill be neat in ap earance.

ther objects and advantages will be apparent during the course of thefollowing description.

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a front elevation of an elevator cage and door having mydevice apphed thereto,

Figure 2 is an enlarged detail view of my device showing the parts in areverse position to that shown in Fig. 1,

Figure 3 is an end elevation of Fig. 2 looking from the right of thedrawing, and

Figure 4 is a fragmentary detail View showing the manner in which theactuating bar may be spliced.

It is a common occurrence to have a person enter an elevator, ride adistance and get out without closing the door of the cage, and

it is essential that the door of a cage be closed for the reason that inmany instances, the closing of the door of the elevator cage serves tocomplete the electrical clrcu t whereby the movement of the elevator 1scontrolled, and if this circuit is not closed, a person at another floorcannot actuate the elevator. Therefore, applicant has produced a verysimple device which may be attached to any elevator having a movabledoor, which device will actuate the door to close it after it has beenopened for the purpose of entering or leaving the elevator ca e.

Tn the accompanying drawings wherein for the purpose of illustration isshown a preferred embodiment of my iuvention,-the numeral 5 designatesan elevator cage attached to the usual cables 6; This cage is adapted totravel inthe customary elevator-shaft and has a folding gate 7. It is ofcourse understood that this" gate might bea'slidi'n'g door withoutaltering theoperation'of my device. At 8' I have shown aplate havinganangular portion 9 thru the medium of wh'ich" the plate is secured tothe topof the elevator and at a point adjacent its forward'edg'eiPivoted',to the plate 8 is ari'arm 'l-l pivoted' as at 12. This armextends downwardly in front of the elevator door 7 and is preferablyjointed as is-best illustrated in Fig. 4, so as to be lengthened forvarious widths of 'door openings. To the lower end ofthis arm 11 is.pivoted a link 13 which is'in' turn pivoted as at 14 to one of therails-16 of'the door 7. Connected to th'e upper end'of the, arm'llis alink '17 which is pivoted as at 18 to a lever 19 pivoted at 21 A spring22- is connected to the upper end-of the lever 19 and has its oppositeend engaged in a projection I 23 formed upon the plate& 'A similarprojection 24 is also formed upon the plate 8, the purpose of which willbe later seen. The operation of my device is as follows Assuming that mydevice has been secured to an elevator, as illustrated in Fig. 1, andthat the door has been moved to the full line position, the spring 22will be under tension, and as a result, when the person entering orleaving the elevator has released his hold upon the door 7 the springwill cause the lever 19 to move about its pivot 21 thus exerting a pullupon the link 17, actuating the arm 11 about its pivot 12, and in turnpushing upon the link 13 with a result that the door 7 will move fromits full line position thus closing the door. Should the elevator dooropen in the opposite direction from that shown in Fig. 1, it is merelynecessary to reverse the position of the lever 19 from the left handside of the plate as shown in this figure to the right hand side of theplate as shown in Fig. 2 and to moi e the plate from the left hand sideof the elevator to the right hand side of the elevator.

It will thus be seen that by this simple arrangement, an form ofelevator door may be closed and in either direction depending entirelyupon the arrangement of the parts of my device.

It is to be understood that the form of my invention herewith shown anddescribed is to be vtaken as a, preferred example of the same .randthatgva'rious lianqe's relative to the material, size, shape and arranement of parts may be resorted to Without epar'ting from the spirit? ofthe invention or the scope of the subjoined claims,

Having thus described invention, I claim:

1. In a device of the'harac'tef described,

he e mbi at nz f a doo p n av in a door 'closnre slidably positioned in,said door opening, of a plate positioned abovesaid door openin of anarm pivoted to said plate 7 and having. ts lower extremity extending infrontoffi sa1ddooropening, of a link pivoted to said arm and to door, ofa link pivoted to-thiel lpper extremitjof said arm, of a leverpivoteditosiaid late and to said last meni b nk we spo -in e p t el hewe Qndoisa lever an a El t er the-I PrPq e epe fied- 2i- In aidevicejofthe character described, a plate ada ted to be-secured above a dooropening, 's'ai' plate having projections formed thereim of a lever,pivoted to said plate,.a spring interposed between one end of. saidlever d 9 ,1 o sai proj o s of said plate, of an arm pivoted to; saidplate, a link I inter osedzbetvveen one endoi said arm and the ee end ofsaid; lever, a linkpivoted to the free endof; said arm and having itsopposite endv pivotally secured to a door slidably positioned in saiddoor opening.

. testimony whereof, I afiix my signature.

